Question: Which characters has Jerry Seinfeld played?
Paraphrase: Which characters has Jerry Seinfeld played?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P170 wd:Q215506 . ?sbj wdt:P31 wd:Q15711870 } 
Answer: Barry B. Benson, Ken, Bee Larry King, Mooseblood, Adam Flayman, Layton T. Montgomery, Dean Buzzwell, Bob Bumble